As a good boy scout, who is always prepared, I have a number of essential spares and accessories. The one I have to recommend today is a lithium ion jump starter which has helped me out on a number of occasions. Basically, a mobile phone portable charger on steroids.

Whilst the exact model I have is discontinued, this one looks pretty similar. Amazon.co.uk

It jump started the Wind with ease, and you can also use it for phones and laptops too if desired. The torch is also useful for occasional use too.

What essential accessories do you keep to make your motoring life easier?